字幕列表 影片播放 列印英文字幕 Smart Learning for All Topic: Nerves. Why don't we feel pain when we cut our hair? Because if it would, then we would have got angry on our hair dressers. You are just impossible. Wait. I will explain it to you. Inside our body, there is a network of nerves. These nerves help us to sense our surroundings and feel pain, touch, etc. by sending messages to the brain. So, do the nerves of my hair not know how to send a message? No. Generally, the part of our hair above the skin is made up of dead cells. It does not have any nerves. Hence, when we cut our hair, due to the absence of nerves, our brain does not receive any messages of pain. As a result, we don't feel any pain. For more educational videos please visit http://www.SmartLearningforAll.com Also, don't forget to subscribe to our YouTube channel.
A2 初級 美國腔 神經系統 - 為什麼我們剪頭髮時不覺得痛?| 頭髮是什麼? (Nervous System - Why dont we feel pain when we cut our hair? | #aumsum) 34 1 AumSum 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字